Wind Tunnel Test on Wind Pressure Distribution of a Super Long‑Span Roof

被引：0

作者：

Lin T. ^{[1
,4
]}

Xie Z. ^{[1
]}

Feng S. ^{[1
,2
]}

Zhang L. ^{[3
]}

Tang L. ^{[3
]}

机构：

[1] State Key Laboratory of Subtropical Building and Urban Science, South China University of Technology, Guangzhou

[2] China Construction Fourth Divsion South China Construction Co.，Ltd., Guangzhou

[3] South China Company, China Construction Second Engineering Bureau Co.，Ltd, Shenzhen

[4] School of Economics, Guangdong University of Technology, Guangzhou

来源：

Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis | 2023年 / 43卷 / 06期

关键词：

extreme wind pressure estimation; sectional model; super large span roof; wind pressure distribution; wind tunnel test;

D O I：

10.16450/j.cnki.issn.1004-6801.2023.06.003

中图分类号：

学科分类号：

摘要：

In order to study the wind pressure distribution characteristics of Shenzhen International Convention and Exhibition Center with a span of 1.7 km，a wind tunnel pressure test is carried out by using the sectional model method，and the interference effects between different exhibition halls are also considered. For the ob⁃ servation extreme value method based on mutual information，the envelope values of the minimum independent observation time interval of different models are used as the sample independent observation time interval for simplification. The results show that，the extreme wind pressure estimation results of the simplified method and the observation extreme value method based on strict mutual information have good consistency and statistical stability，and the calculation efficiency is greatly improved. Further，the wind pressure distribution characteris⁃ tics of the whole roof show the rationality of the sectional model method，and the sectional model method can de⁃ scribe the local area of the roof corner in more detail.So，the local wind pressure distribution characteristics of the roof can be obtained more accurately. The sectional model method can accurately reflect the mutual interfer⁃ ence between roofs in different exhibition areas. Moreover，the maximum extreme negative pressure interfer⁃ ence coefficient of wind sensitive positions between exhibition halls can reach 1.26，and the minimum negative pressure of the whole roof structure can reach ‒7.0 kPa. The high negative pressure mainly occurs in the corner area of the whole roof. Therefore，sufficient attention should be paid to the high negative pressure corner area in the wind resistance design. © 2023 Nanjing University of Aeronautics an Astronautics. All rights reserved.

引用

页码：1067 / 1072and1240

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